신재생에너지 (New & Renewable Energy)
- 제5권4호
- /
- Pages.11-18
- /
- 2009
- /
- 1738-3935(pISSN)
- /
- 2713-9999(eISSN)
단기관측에 의한 월령 연안지역 풍력에너지 잠재량 평가
Assessment of Wind Energy Potentiality in Wolryong using Short-term Observation
초록
Wind energy resources are recently considered as an important power generation alternative in the future. The fact that the investment of wind turbine installation continues to increase has motivated a need to develop more widely applicable methodologies for evaluating the actual benefits of adding wind turbines to conventional generating systems. This study is aiming to estimate the future wind resources with various estimation methods. The wind power is calculated at the hub height 75m of 800KW and 1,500KW wind turbines in Wolryong site, Jeju island, South Korea. Three equations - logarithmic, profile, and power law methods are applied for the accurate prediction of wind profile. In addition, yearly wind power can be calculated by using Weibull & Rayleigh distribution. It is found that predicted wind speed is highly affected by friction velocity, atmospheric stability, and averaged roughness length. It is concluded that Rayleigh distribution provides greater power generation than the Weibull distribution, especially for low wind-speed condition.
키워드